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M1102/M1103 16-Speed Drill Press
SERVICE
Feed Shaft Spring
Tension
The feed shaft return spring is adjusted at the factory;
however, during the life of the drill press you may want
to adjust the feed shaft return spring so the pressure suits
your operating needs.
Figure 26. Feed shaft return spring
assembly.
To adjust the feed shaft spring tension, do these
steps:
1.
DISCONNECT THE DRILL PRESS FROM POWER!
2. Wipe off any oil on the spring lock cover so it does
not slip in your fingers when you hold the cover from
spinning (see Figure 26
).
3. While holding the spring lock cover against the side
of the headstock so the cover stays splined with the
locking lug; loosen the cover nut approximately
1
⁄4"
(see Figure 27).
4. Pull the cover outward just enough to disengage the
spring-cover lock slot from the locking lug.
Note: It is important to keep a good grip during this
step. Letting go of the cover will cause the spring to
rapidly uncoil.
5. Rotate the cover counterclockwise to increase spring
tension, or in the clockwise direction to reduce spring
tension.
6. Engage the next available spring-cover lock slot with
the locking lug and hold the spring lock cover tightly
against the side of the headstock.
7. Snug the cover nut against the spring cover just until
the nut stops, and then back off the nut approximately
1
⁄3 turn, or just enough so there is no binding during
complete spindle travel.
8. Tighten the cover nut.
Spring Cover
Lock Slot
Spring Lock
Cover
Figure 27. Loosening cover nut.
A high tension coiled spring is underneath the cover.
Put on heavy leather gloves to protect yours hands
from possible lacerations when removing the cover
in the next step.
Locking
Lug
Wear safety glasses when adjusting the
coil spring. Serious eye injury may occur
if this warning is ignored!